Test your basic knowledge |

DSST Physical Sciences Principles

Subjects : dsst, science

Instructions:

Answer 31 questions in 15 minutes.
If you are not ready to take this test, you can study here.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.

1. A 5 kg fish that is swimming toward it at a velocity that brings both fish to a halt. What is the speed of the smaller fish?
Movement
Newtons first principle of Universal Gravitation
Heat of fusion
5 m/s

2. The heat involved in the change of phase of phase from solid ice to liquid water is called...
Heat of fusion
Waves and particles
Decreased
Second principle of Centripetal force

3. Electric power companies step up the voltage of generated power for transmission across the country because higher voltage...
12 miles per hour
Heat of fusion
Means less power is transmitted
Waste heat for secondary uses

4. The gravitational force - two masses are directly proportional to the mass of each object
Increases the energy
Less on the moon
Newtons second principle of Universal Gravitation
Sulfur

5. If a charging elephant has kinetic energy - it must also have...
Increases the energy
5 m/s
Halogen radicals interfering in ozone synthesis
Momentum

6. A ship travels 3 miles in 15 minutes what is its speed in miles per hour...
12 miles per hour
Near a maximum
Momentum
Remains unchanged

7. At a given speed - the centripetal force - the smaller the circle.
Third principle of Centripetal force
263 degrees kelvin
Sulfur
Remains unchanged

8. Neglecting air resistance - a ball in free fall near the earth's surface will have...
Twice the work
Near a maximum
Increasing speed and constant acceleration
Decreased

9. Entropy refers to...
Second principle of Centripetal force
Difference in the sped of light in water vs. air
Mechanical - chemical - and radiant energy
Disorder

10. Electrical energy can be converted to...
Movement
Decreased
Difference between the heat supplied and the heat exhausted
Mechanical - chemical - and radiant energy

11. The ozone hole results from...
Newtons third principle of Universal Gravitation
First principle of Centripetal force
Halogen radicals interfering in ozone synthesis
Universal

12. The gravitational force between two masses is inversely proportional to the square of the distance between those two objects.
Waves and particles
Disorder
Less on the moon
Newtons third principle of Universal Gravitation

13. The reason that a spear fisherman cannot see where the fish is actually located is...
Difference in the sped of light in water vs. air
Universal
Decreased
Waves and particles

14. Raising an auto in a service station requires work. Raising it twice as high requires...
Twice the work
263 degrees kelvin
Waves and particles
Less on the moon

15. A temperature of -10 degrees celsius is equivalent to...
Twice the work
263 degrees kelvin
Waves and particles
Total internal energy of an object

16. Increasing the frequency of light
5 m/s
Increases the energy
Waves and particles
Universal

17. cogeneration uses...
Third principle of Centripetal force
Waste heat for secondary uses
Decreased
Sulfur

18. The theoretical production curve of oil indicates oil production is...
Twice the work
Halogen radicals interfering in ozone synthesis
Waste heat for secondary uses
Near a maximum

19. The larger the centripetal force - the faster an object travels in a circle of a given size
Difference in the sped of light in water vs. air
Second principle of Centripetal force
Newtons second principle of Universal Gravitation
Heat of fusion

20. Which is not one of the fundamental forces of nature...
Momentum
Twice the work
Movement
Universal

21. The weight of one kilogram of iron on earth is...
Newtons first principle of Universal Gravitation
12 miles per hour
Less on the moon
Increases the energy

22. When you add heat to a substance - its temperature...
Might stay the same
Increasing speed and constant acceleration
Difference in the sped of light in water vs. air
Movement

23. Heat is the...
Means less power is transmitted
Decreased
Total internal energy of an object
Newtons second principle of Universal Gravitation

24. Electromagnetic radiation can be viewed as...
Difference in the sped of light in water vs. air
Newtons first principle of Universal Gravitation
Momentum
Waves and particles

25. Circular motion requires centripetal force
Increases the energy
Newtons second principle of Universal Gravitation
First principle of Centripetal force
Disorder

26. If the mass of a cart full of groceries decreases of half and its speed doubles - the momentum of the cart...
Increasing speed and constant acceleration
Newtons third principle of Universal Gravitation
Momentum
Remains unchanged

27. In burning coal - what contaminant is of major concern as a pollutant...
Increases the energy
Third principle of Centripetal force
Waste heat for secondary uses
Sulfur

28. From the 50's and to the 70's - the pH of rain in the northeast had..
Difference in the sped of light in water vs. air
Decreased
Near a maximum
Might stay the same

29. The work that a heat engine is able to accomplish is ideally equivalent to the
Increasing speed and constant acceleration
Second principle of Centripetal force
Newtons second principle of Universal Gravitation
Difference between the heat supplied and the heat exhausted

30. All objects with mass are attracted to another by the gravitational force
Increases the energy
Waste heat for secondary uses
Remains unchanged
Newtons first principle of Universal Gravitation

31. In a generator - the flow of electrons (current) is created by...
Mechanical - chemical - and radiant energy
Decreased
Movement
263 degrees kelvin